Multiple circular file.



E. H. SCHEIFER.

' MULTIPLE CIRCULAR FILE.

CATIGII FILED MAY 25.1918

Patented B60111918. I

I II I Il' Il! Il! 'IIIIII EDWARD H. SGHEIFER, OF MIDVALE, IDAHO.

MULTIPLE CIRCULAR FILE.

Specification ofvLetters Patent. Patented Der). 17, 1918.

Application filed -/Iay 25, 1918. Serial No. 236,595.

To aZZ whom t may concern:

Be it known that I, EDWARD H. SCHEIFER, citizen of France, residing atMidvale, in the county of lWashington and State of ldaho, have inventednew and useful improvements in Multiple Circular Files, of which thefollowing is a specification.

rfhis invention relates to les, and more particularly to tools orimplements of the character named, designed to be applied to a. lathechuck or other rotating member.

Olne object of the invention is to provide a plurality of disks each ofwhich is serrated on the outer edge thereof in order to afford anabrasive surface, with means for assembling these disks in a series toform a single disk file, the outer element being employed at a giventime as the abrasive tool.

A further object is to provide a disk having a serrated outer edge andif desired a roughened surface, adapted to be secured d1- rectly to alathe chuck or the like, this disk being threaded on the edge forengaging complementary threads on the inner edge of an opening in a ringmember constituting another abrasive element, the latter being providedwith serrated portions on the edge and on the surface. An additionalannular member formed as above indicated may sur-l round the ring memberfirst named and have threaded connection therewith.

With the foregoing and other objects in view, my invention consists inthe novel construction, combination, and arrangement of elementshereinafter described and claimed.

In the drawings:

Figure l is a view in elevation.

Fig. 2 is a view in section.

Fig. 3 is a detached view, it being understood however, that additionalring members may be provided.

disk member l0 is provided with a central aperture l2, in order that itmay be connected with a lathe chuck or any other rotating element, andthis member l0 is provided with serrated portions on the edge 13 and onone or both surfaces as shown at 14. Member l0 is also provided with aseries of threads 15 on the edge thereof, these threads engagingcomplementary threads 16 on a ring member 17 constituting an abrasiveelement of greater diameter.

Member 17 is provided with a roughened surface 18 and a roughened edge19 and with threads 20, and ring member 25 is similarly formed.

It will be understood that these serrated surfaces may be differentlyscored in order to provide iiles of gradually decreasing iineness, sothat any type of implement required on the work under way will beimmediately available. If any single element is unduly worn, it may berenewed Without 'renewing the other elements of the series, it merelybeing necessary to reassemble the parts. One object is to economize timeby providing a number of files of different degrees of i'ineness inposition to be immediately used, without the necessity of obtaininganother tile from vthe case or tool box.

What is claimed is:

l. in a device of the class described, a disk member carrying threads onthe edge portion thereof, and being provided with a serrated faceportion, and a ring member having threaded connection with the disk andprovided with serrations on the edge portion thereof.

2. In a device of the class described, a disk provided with threads, anda plurality of rings carried by said disk, each of the rings beingprovided with serrated portions, the rings having threaded connectionwith each other and certain of the rings having threaded connection withthe disk.

3. ln a device of the class described, a file comprising a series ofannular members having inter-engaging means formed on the edge portionsthereof for connecting said members, and having serrated portions formedthereon.

4c. In a device of the class described, a tile comprising a series ofannular members having threaded connection with each other, the threadedportions of certain of the members being intersected by transversechannels forming tiling surfaces.

5. ln a device of the class described, a plurality of annular membersone of which is provided with means for securing the same to a rotatingelement, the others of said annular members having inter-engagingportions on the edges thereof and each of said members being providedwith a Ser rated edge portion.

6. ln a device of the class described, a plurality of annular membersone of which constitutes a disk and is provided With a serrated andthreaded edge portion, the second Leeeie of which is provided Withthreads engaging the threads of the disk and With a. second series ofthreads,` and the third of said annular members being provided with aseries of threads engaging the threads of the second member and alsoprovided with serrated portions on the outer edge thereof.

ln testimony whereof l aix my signature.

EDWARD H. SCHEIFER.

ope ef this patent may be obtained for five cents each, by addressingthe Cemmissoner of Patents.

' Weehmgten, E, 03.9

